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Schach [20]
2 years ago
7

A clock cog rotates 150 degrees in 20 minutes. How far will far will the same cog rotate in 70 minutes

Mathematics
2 answers:
Alex2 years ago
8 0

Answer:

525 degrees

Step-by-step explanation:

Aleksandr [31]2 years ago
5 0
I think it’s 450
I am not sure but yeah ;)
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The mean value of land and buildings per acre from a sample of farms is $1400, with a standard deviation of $100. The data set h
Harman [31]

Answer:

B, D, and F :)

Step-by-step explanation:

3 0
4 years ago
I’ll give brainliist
34kurt

Step-by-step explanation:

The line is

j --------K----------M---------N---------L

6. 4. 4. 4

JN = 14

KM = 4

KM = MN = LN =4

JK = 14 - (KM+MN)

JK = 14 - 8 = 6

JK = 6

MN = 4

LJ = 18

KN = 8

MJ = 10

NL = 4

3 0
3 years ago
Find the slope of the curve below at the given points. Sketch the curve along with its tangents at these points. R = sin 2 theta
mr Goodwill [35]

Answer:

<u>    </u><u>-1     </u>

Step-by-step explanation:

Given that:

r = sin 2θ  , θ = ± π/4 , ± 3π/4

Recall that:

x = r cosθ

y = r sinθ

The  differential of y with respect to x

\dfrac{dy}{dx} = \dfrac{\dfrac{dy}{d \theta}}{\dfrac{dx}{d \theta}}

\dfrac{dy}{dx} =\dfrac{\dfrac{dy}{d \theta}}{\dfrac{dx}{d \theta}} = \dfrac{ r cos \theta + sin \theta* \dfrac{dr}{d \theta} } {\dfrac{dr}{d \theta} *cos \theta- sin \theta \ r}

at  θ = π/4  , r = sin π/2

r = 1

\dfrac{dy}{dx} = \dfrac{ r cos \theta + 2 cos (2 \theta)*sin \ \theta } {2 \ cos (2 \theta) *cos \theta- sin 2 \theta * sin \theta}

where;

θ = π/4

\dfrac{dy}{dx} = \dfrac{ 1 \times  cos (\dfrac{\pi}{4}) + 2 cos  (\dfrac{\pi}{2})*sin  (\dfrac{\pi}{4}) } {2 \ cos  (\dfrac{\pi}{2})*cos  (\dfrac{\pi}{4})- sin  (\dfrac{\pi}{2}) * sin  (\dfrac{\pi}{4})}

\dfrac{dy}{dx} = \dfrac{\dfrac{1}{\sqrt{2}}+0 }{0-1 * \dfrac{1}{\sqrt{2}}}

\dfrac{dy}{dx} = \dfrac{\dfrac{1}{\sqrt{2}} }{- \dfrac{1}{\sqrt{2}}}

\mathbf{\dfrac{dy}{dx} =-1}

slope of the curve (dy/dx) at theta(θ)  = pi/4 is -1

7 0
3 years ago
a 35 foot wire is secured from the top of a flagpole to a stake in the ground if the stake is 14 feet from the base of the flagp
zzz [600]
If my calculations are correct the answer is 21 ft
3 0
3 years ago
Help me with this math question please I'm giving away brainliests​
lianna [129]

Answer:

light blue

Step-by-step explanation:

4 0
3 years ago
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